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EP3870448B1 - Nickel-based alloy for additive manufacturing and additive manufacturing method - Google Patents

Nickel-based alloy for additive manufacturing and additive manufacturing method Download PDF

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Publication number
EP3870448B1
EP3870448B1 EP19821053.6A EP19821053A EP3870448B1 EP 3870448 B1 EP3870448 B1 EP 3870448B1 EP 19821053 A EP19821053 A EP 19821053A EP 3870448 B1 EP3870448 B1 EP 3870448B1
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Prior art keywords
weight
content
alloy
nickel
tantalum
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EP19821053.6A
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German (de)
French (fr)
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EP3870448A1 (en
Inventor
Christoph Heinze
Yves KÜSTERS
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Siemens Energy Global GmbH and Co KG
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Siemens Energy Global GmbH and Co KG
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Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/04Making non-ferrous alloys by powder metallurgy
    • C22C1/0433Nickel- or cobalt-based alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20Direct sintering or melting
    • B22F10/25Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20Direct sintering or melting
    • B22F10/28Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C19/00Alloys based on nickel or cobalt
    • C22C19/03Alloys based on nickel or cobalt based on nickel
    • C22C19/05Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/051Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
    • C22C19/055Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C32/00Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0026Matrix based on Ni, Co, Cr or alloys thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2301/00Metallic composition of the powder or its coating
    • B22F2301/15Nickel or cobalt
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00Processes of additive manufacturing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00Materials specially adapted for additive manufacturing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Definitions

  • the invention relates to a nickel-based alloy that can be used in additive manufacturing by means of selective energy irradiation such as laser radiation, electron beams or powder deposition welding.
  • Additive manufacturing such as selective laser beam melting (SLM), but not limited to the process mentioned, is based on the layer-by-layer, selective melting of powder layers as the starting material to create a geometric object.
  • SLM selective laser beam melting
  • Nickel-based materials can be built up productively and without cracks in a layer thickness of up to 40 ⁇ m, but for some applications they do not have sufficient mechanical properties, such as creep resistance in particular. Furthermore, the oxidation resistance is often limited.
  • the US2008101981A1 discloses a nickel base alloy containing carbon, chromium, cobalt, tungsten, titanium, aluminum, boron, zirconium, tantalum, niobium and palladium.
  • the EP 3 205 442 A1 discloses a nickel base alloy with carbon, chromium, cobalt, tungsten, titanium, aluminum, boron, zirconium, tantalum, niobium.
  • the EP 3 257 956 A1 also discloses a nickel base alloy with carbon, chromium, cobalt, tungsten, titanium, aluminum, boron, tantalum and niobium, molybdenum.
  • the object is achieved by an alloy according to claim 1 and a method according to claim 2.
  • the invention relates to a nickel-base superalloy consisting of, in % by weight: carbon (C) 0.13% - 0.17% Chromium (Cr) 21% - 22% cobalt (Co) 18% - 20% Tungsten (W) 1.8% - 2.2% Titanium (Ti) 3.0% - 3.4% Aluminum (Al) 2.1% - 3.0% boron (B) 0.008% - 0.012% Zircon (Zr) 0.0025% - 0.01% Tantalum (Ta) 1.6% - 2.5% niobium (Nb) 1.2% - 1.6% optionally: Yttrium (Y) 0.0025% - 0.0075% Yttria (Y 2 O 3 ) 0.25% - 1.25% optional and in particular maximum: vanadium (V) 0.01% Hafnium (Hf) 0.01% Silver (Ag) 0.005% Lead (Pb) 0.0003% Selenium (Se) 0.0003% oxygen (O) 0.005% Gall
  • the low sulfur (S) content increases the resistance to oxidation and corrosion.
  • the titanium (Ti) content is selected to compensate for a ⁇ ' content with higher levels of tantalum (Ta) and aluminum (Al).
  • Aluminum (Al) content improves creep properties and oxidation resistance.
  • tantalum (Ta) significantly improves creep properties, while the niobium (Nb) content increases strength.
  • the oxidation resistance is improved by the addition of yttrium oxide (Y 2 O 3 ).
  • Selective powder melting or selective powder sintering or build-up welding, powder build-up welding is preferably used as the method, as well as selective laser sintering or selective laser melting.
  • the chromium (Cr) content is preferably 21.0% to 21.5%, more preferably 21.0% to 21.3%, most preferably 21.0% by weight.
  • the cobalt (Co) content is preferably 19% by weight.
  • the content of titanium (Ti) is preferably 3.0% by weight to 3.2% by weight, in particular 3.0% by weight to 3.1% by weight, very particularly 3.0% by weight. %.
  • the aluminum (Al) content is preferably 2.2% by weight to 2.4% by weight, in particular 2.3% by weight to 2.4% by weight, very particularly 2.4% by weight. %.
  • the content of tantalum (Ta) is preferably 1.7% by weight to 1.9% by weight, in particular 1.8% by weight to 1.9% by weight, very particularly 1.9% by weight. %.
  • the content of niobium (Nb) is preferably 1.4% by weight to 1.6% by weight, in particular 1.5% by weight to 1.6% by weight, very particularly 1.6% by weight. %.
  • the carbon content (C) is preferably 0.15% by weight.
  • the content of tungsten (W) is preferably 2.0% by weight.
  • the aluminum (Al) content is preferably 2.4% by weight to 3.0% by weight, in particular 2.6% by weight to 3.0% by weight, very particularly 3.0% by weight. %.
  • Ta tantalum

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Powder Metallurgy (AREA)
  • Laser Beam Processing (AREA)
  • Conductive Materials (AREA)

Description

Die Erfindung betrifft eine Legierung auf Nickelbasis, die bei der additiven Fertigung mittels selektiver Energiebestrahlung wie Laserstrahlung, Elektronenstrahlung oder auch Pulverauftragsschweißen verwendet werden kann.The invention relates to a nickel-based alloy that can be used in additive manufacturing by means of selective energy irradiation such as laser radiation, electron beams or powder deposition welding.

Die additive Fertigung, wie z.B. das selektive Laserstrahlschmelzen (SLM), aber nicht beschränkt auf das genannte Verfahren, basiert auf der lagenweisen, selektiven Aufschmelzung von Pulverschichten als Ausgangsmaterial zur Erzeugung eines geometrischen Objektes.Additive manufacturing, such as selective laser beam melting (SLM), but not limited to the process mentioned, is based on the layer-by-layer, selective melting of powder layers as the starting material to create a geometric object.

Beim SLM von hochtemperaturbeständigen Legierungen treten während des Prozesses Mikrorisse und während der Wärmebehandlung Makrorisse auf.In SLM of high temperature alloys, microcracking occurs during the process and macrocracking occurs during the heat treatment.

Nickelbasiswerkstoffe lassen sich in einer Schichtdicke bis zu 40µm rissfrei und produktiv aufbauen, allerdings weisen sie für eine einige Anwendungen keine ausreichenden mechanischen Eigenschaften auf, wie insbesondere Kriechfestigkeit. Im Weiteren ist die Oxidationsbeständigkeit oft eingeschränkt.Nickel-based materials can be built up productively and without cracks in a layer thickness of up to 40 µm, but for some applications they do not have sufficient mechanical properties, such as creep resistance in particular. Furthermore, the oxidation resistance is often limited.

Für eine Exploration und Industrialisierung weiterer additiv gefertigter Heißgas-Komponenten ist allerdings eine Legierung mit geeigneter Kombination aus mechanischen Eigenschaften und Produktivität notwendig.However, an alloy with a suitable combination of mechanical properties and productivity is required for the exploration and industrialization of other additively manufactured hot gas components.

Die US 2008101981 A1 offenbart eine Nickelbasislegierung mit Kohlenstoff, Chrom, Kobalt, Wolfram, Titan, Aluminium, Bor, Zirkon, Tantal, Niob sowie Palladium.the US2008101981A1 discloses a nickel base alloy containing carbon, chromium, cobalt, tungsten, titanium, aluminum, boron, zirconium, tantalum, niobium and palladium.

Die EP 3 205 442 A1 offenbart eine Nickelbasislegierung mit Kohlenstoff, Chrom, Kobalt, Wolfram, Titan, Aluminium, Bor, Zirkonium, Tantal, Niob.the EP 3 205 442 A1 discloses a nickel base alloy with carbon, chromium, cobalt, tungsten, titanium, aluminum, boron, zirconium, tantalum, niobium.

Die EP 3 257 956 A1 offenbart ebenfalls eine Nickelbasislegierung mit Kohlenstoff, Chrom, Kobalt, Wolfram, Titan, Aluminium, Bor, Tantal sowie Niob, Molybdän.the EP 3 257 956 A1 also discloses a nickel base alloy with carbon, chromium, cobalt, tungsten, titanium, aluminum, boron, tantalum and niobium, molybdenum.

Bisher wurde das Problem durch die Verwendung von anderen Legierungen gelöst, wobei dies eine Einschränkung bezüglich Bauqualität und Produktivität (20µm Schichtdicke) zur Folge hat. Insbesondere treten bei den entsprechenden Legierungen Mikrosrissbildung (im SLM-Prozess) und Makrorissbildung während der Wärmebehandlung auf, so dass ein Einsatz des SLM-Verfahrens mit diesen alternativen Legierungen die Nutzung als Fertigungsprozess für Neuteile einschränkt und die Möglichkeiten des SLM-Verfahrens nicht zum Tragen kommen können. Die Aufgabe der Erfindung ist daher oben genanntes Problem zu lösen.So far, the problem has been solved by using other alloys, which results in a limitation in terms of build quality and productivity (20 µm layer thickness). In particular, micro-cracking (in the SLM process) and macro-cracking occur in the corresponding alloys during heat treatment, so that the use of the SLM process with these alternative alloys limits the use as a manufacturing process for new parts and the possibilities of the SLM process do not come into play be able. The object of the invention is therefore to solve the above problem.

Die Aufgabe wird gelöst durch eine Legierung gemäß Anspruch 1 und einem Verfahren gemäß Anspruch 2.The object is achieved by an alloy according to claim 1 and a method according to claim 2.

In den Unteransprüchen sind weitere vorteilhafte Maßnahmen aufgelistet, die beliebig miteinander kombiniert werden können, um weitere Vorteile zu erzielen.Further advantageous measures are listed in the dependent claims, which can be combined with one another as desired in order to achieve further advantages.

Die Erfindung betrifft eine Nickelbasissuperlegierung, bestehend aus, in Gew.-%: Kohlenstoff (C) 0,13% - 0,17% Chrom (Cr) 21% - 22% Kobalt (Co) 18% - 20% Wolfram (W) 1,8% - 2,2% Titan (Ti) 3,0% - 3,4% Aluminium (Al) 2,1% - 3,0% Bor (B) 0,008% - 0,012% Zirkon (Zr) 0,0025% - 0,01% Tantal (Ta) 1,6% - 2,5% Niob (Nb) 1,2% - 1,6% optional: Yttrium (Y) 0,0025% - 0,0075% Yttriumoxid (Y2O3) 0,25% - 1,25% optional und insbesondere maximal: Vanadium (V) 0,01% Hafnium (Hf) 0,01% Silber (Ag) 0,005% Blei (Pb) 0,0003% Selen (Se) 0,0003% Sauerstoff (O) 0,005% Gallium (Ga) 0,001% Bismut (Bi) 0,0001% Stickstoff (N) 0,005% Mangan (Mg) 0,007% Tellur (Te) 0,00005% Thallium (Tl) 0,0005% Kalzium (Ca) 0,0001% Kalium (K) 0,0001% Silizium (Si) 0,02% Mangan (Mn) 0,01% Eisen (Fe) 0,02% Kupfer (Cu) 0,01% Phosphor (P) 0,005% Schwefel (S) 0,001% Molybdän (Mo) 0,1% andere Verunreinigungen 0,1% Nickel (Ni) Rest. The invention relates to a nickel-base superalloy consisting of, in % by weight: carbon (C) 0.13% - 0.17% Chromium (Cr) 21% - 22% cobalt (Co) 18% - 20% Tungsten (W) 1.8% - 2.2% Titanium (Ti) 3.0% - 3.4% Aluminum (Al) 2.1% - 3.0% boron (B) 0.008% - 0.012% Zircon (Zr) 0.0025% - 0.01% Tantalum (Ta) 1.6% - 2.5% niobium (Nb) 1.2% - 1.6% optionally: Yttrium (Y) 0.0025% - 0.0075% Yttria (Y 2 O 3 ) 0.25% - 1.25% optional and in particular maximum: vanadium (V) 0.01% Hafnium (Hf) 0.01% Silver (Ag) 0.005% Lead (Pb) 0.0003% Selenium (Se) 0.0003% oxygen (O) 0.005% Gallium (Ga) 0.001% Bismuth (Bi) 0.0001% nitrogen (N) 0.005% Manganese (Mg) 0.007% Tellurium (Te) 0.00005% Thallium (Tl) 0.0005% Calcium (Ca) 0.0001% Potassium (K) 0.0001% Silicon (Si) 0.02% Manganese (Mn) 0.01% iron (Fe) 0.02% copper (Cu) 0.01% Phosphorus (P) 0.005% Sulfur (S) 0.001% Molybdenum (Mo) 0.1% other impurities 0.1% Nickel (Ni) Rest.

Durch den verringerten Anteil von Silizium (Si) und Mangan (Mn) wird das Rissverhalten deutlich verbessert.Due to the reduced proportion of silicon (Si) and manganese (Mn), the crack behavior is significantly improved.

Durch den geringen Gehalt an Schwefel (S) wird der Oxidations- und Korrosionswiderstand erhöht.The low sulfur (S) content increases the resistance to oxidation and corrosion.

Durch den Chromgehalt (Cr) wird der Anteil der Sigma-Phase mit höherem γ'-Anteil kompensiert.The proportion of the sigma phase with a higher γ' proportion is compensated by the chromium content (Cr).

Ebenfalls wird der Titangehalt (Ti) so ausgewählt, um einen γ'-Gehalt mit höherem Anteil von Tantal (Ta) und Aluminium (Al) zu kompensieren.Also, the titanium (Ti) content is selected to compensate for a γ' content with higher levels of tantalum (Ta) and aluminum (Al).

Der Gehalt an Aluminium (Al) verbessert die Kriecheigenschaften und den Oxidationswiderstand.Aluminum (Al) content improves creep properties and oxidation resistance.

Durch die Gehalte an Zirkon (Zr), Eisen (Fe), Kupfer (Cu) wird die Rissfähigkeit deutlich verringert.Due to the content of zirconium (Zr), iron (Fe), copper (Cu), the ability to crack is significantly reduced.

Durch die Zugabe von Tantal (Ta) werden die Kriecheigenschaften deutlich verbessert, wobei der Niob-Gehalt (Nb) die Festigkeit erhöht.The addition of tantalum (Ta) significantly improves creep properties, while the niobium (Nb) content increases strength.

Durch die Zugabe von Yttriumoxid (Y2O3) wird der Oxidationswiderstand verbessert.The oxidation resistance is improved by the addition of yttrium oxide (Y 2 O 3 ).

Mit den gezeigten Anpassungen wird die Verarbeitbarkeit für einen produktiven SLM-Prozess mit verbesserten mechanischen Eigenschaften und gesteigerter Oxidationsbeständigkeit gewährleistet. In der Wärmebehandlung ist keine Rissbildung aufgrund Alterungserscheinungen zu erwarten, diese wurde experimentell und simulativ bestätigt, was die Nachbearbeitungsaufwendungen, wie Oberflächenbehandlung, reduziert.The adjustments shown ensure processability for a productive SLM process with improved mechanical properties and increased oxidation resistance. In the heat treatment, no cracking due to signs of aging is to be expected, this has been confirmed experimentally and simulatively, which reduces the post-processing expenses, such as surface treatment.

Als Verfahren wird vorzugsweise selektives Pulverschmelzen oder selektives Pulversintern oder Auftragsschweißen, Pulverauftragsschweißen verwendet, sowie selektives Lasersintern oder ein selektives Laserschmelzen.Selective powder melting or selective powder sintering or build-up welding, powder build-up welding is preferably used as the method, as well as selective laser sintering or selective laser melting.

Der Chromgehalt (Cr) beträgt vorzugsweise 21,0% bis 21,5%, insbesondere 21,0% bis 21,3%, ganz insbesondere 21,0 Gew.-%.The chromium (Cr) content is preferably 21.0% to 21.5%, more preferably 21.0% to 21.3%, most preferably 21.0% by weight.

Der Kobaltgehalt (Co) beträgt vorzugsweise 19 Gew.-%.The cobalt (Co) content is preferably 19% by weight.

Der Gehalt an Titan (Ti) beträgt vorzugsweise 3,0 Gew.-% bis 3,2 Gew.-%, insbesondere 3,0 Gew.-% bis 3,1 Gew.-%, ganz insbesondere 3,0 Gew.-%.The content of titanium (Ti) is preferably 3.0% by weight to 3.2% by weight, in particular 3.0% by weight to 3.1% by weight, very particularly 3.0% by weight. %.

Der Gehalt an Aluminium (Al) beträgt vorzugsweise 2,2 Gew.-% bis 2,4 Gew.-%, insbesondere 2,3 Gew.-% bis 2,4 Gew.-%, ganz insbesondere 2,4 Gew.-%.The aluminum (Al) content is preferably 2.2% by weight to 2.4% by weight, in particular 2.3% by weight to 2.4% by weight, very particularly 2.4% by weight. %.

Der Gehalt an Tantal (Ta) beträgt vorzugsweise 1,7 Gew.-% bis 1,9 Gew.-%, insbesondere 1,8 Gew.-% bis 1,9 Gew.-%, ganz insbesondere 1,9 Gew.-%.The content of tantalum (Ta) is preferably 1.7% by weight to 1.9% by weight, in particular 1.8% by weight to 1.9% by weight, very particularly 1.9% by weight. %.

Der Gehalt an Niob (Nb) beträgt vorzugsweise 1,4 Gew.-% bis 1,6 Gew.-%, insbesondere 1,5 Gew.-% bis 1,6 Gew.-%, ganz insbesondere 1,6 Gew.-%.The content of niobium (Nb) is preferably 1.4% by weight to 1.6% by weight, in particular 1.5% by weight to 1.6% by weight, very particularly 1.6% by weight. %.

Der Kohlenstoffgehalt (C) beträgt vorzugsweise 0,15 Gew.-%.The carbon content (C) is preferably 0.15% by weight.

Der Wolframgehalt (W) beträgt vorzugsweise 2,0 Gew.-%.The content of tungsten (W) is preferably 2.0% by weight.

Der Gehalt an Aluminium (Al) beträgt vorzugsweise 2,4 Gew.-% bis 3,0 Gew.-%, insbesondere 2,6 Gew.-% bis 3,0 Gew.-%, ganz insbesondere 3,0 Gew.-%.The aluminum (Al) content is preferably 2.4% by weight to 3.0% by weight, in particular 2.6% by weight to 3.0% by weight, very particularly 3.0% by weight. %.

Vorteile werden auch erzielt mit einem vorzugsweisen Gehalt an Tantal (Ta) 1,9 Gew.-% bis 2,5 Gew.-%, insbesondere 2,2 Gew.-% bis 2,5 Gew.-%, ganz insbesondere 2,5 Gew.-%.Advantages are also achieved with a preferred tantalum (Ta) content of 1.9% by weight to 2.5% by weight, in particular 2.2% by weight to 2.5% by weight, very particularly 2. 5% by weight.

Claims (13)

  1. Nickel-base superalloy consisting of, in % by weight: carbon (C) 0.13%-0.17% chromium (Cr) 21%-22% cobalt (Co) 18%-20% tungsten (W) 1.8%-2.2% titanium (Ti) 3.0%-3.4% aluminum (Al) 2.1%-3.0% boron (B) 0.008%-0.012% zirconium (Zr) 0.0025%-0.01% tantalum (Ta) 1.6%-2.5% niobium (Nb) 1.2%-1.6%
    optionally: yttrium (Y) 0.0025%-0.0075% yttrium oxide (Y2O3) 0.25%-1.25%
    optionally and especially not more than: vanadium (V) 0.01% hafnium (Hf) 0.01% silver (Ag) 0.005% lead (Pb) 0.0003% selenium (Se) 0.0003% oxygen (O) 0.005% gallium (Ga) 0.001% bismuth (Bi) 0.0001% nitrogen (N) 0.005% manganese (Mn) 0.007% tellurium (Te) 0.00005% thallium (Tl) 0.0005% calcium (Ca) 0.0001% potassium (K) 0.0001% silicon (Si) 0.02% manganese (Mn) 0.01% iron (Fe) 0.02% copper (Cu) 0.01% phosphorus (P) 0.005% sulfur (S) 0.001% molybdenum (Mo) 0.1% other impurities 0.1% nickel (Ni) balance.
  2. Method of producing a component from an alloy according to Claim 1,
    in which an additive manufacturing method is chosen, especially selective powder melting or selective powder sintering or application welding,
    especially powder application welding.
  3. Method according to Claim 2,
    in which selective laser sintering or selective laser melting is used.
  4. Alloy or method according to one or both of Claims 1, 2 and 3,
    in which the chromium content (Cr) is 21.0% to 21.5%; especially 21.0% to 21.3%,
    very particularly 21.0% by weight.
  5. Alloy or method according to one or more of Claims 1, 2, 3 and 4,
    in which the cobalt content (Co) is 19% by weight.
  6. Alloy or method according to one or more of Claims 1, 2, 3, 4 and 5,
    in which the content of titanium (Ti) is 3.0% by weight to 3.2% by weight,
    especially 3.0% by weight to 3.1% by weight,
    very particularly 3.0% by weight.
  7. Alloy or method according to one or more of Claims 1, 2, 3, 4, 5 and 6,
    in which the content of aluminum (Al) is 2.2% by weight to 2.4% by weight,
    especially 2.3% by weight to 2.4% by weight,
    very particularly 2.4% by weight.
  8. Alloy or method according to one or more of Claims 1, 2, 3, 4, 5, 6 and 7,
    in which the content of tantalum (Ta) is 1.7% by weight to 1.9% by weight,
    especially 1.8% by weight to 1.9% by weight,
    very particularly 1.9% by weight.
  9. Alloy or method according to one or more of the preceding claims,
    in which the content of niobium (Nb) is 1.4% by weight to 1.6% by weight,
    especially 1.5% by weight to 1.6% by weight,
    very particularly 1.6% by weight.
  10. Alloy or method according to one or more of the preceding claims,
    in which the carbon content (C) is 0.15% by weight.
  11. Alloy or method according to one or more of the preceding claims,
    in which the tungsten content (W) is 2.0% by weight.
  12. Alloy or method according to one or more of the preceding claims,
    in which the content of aluminum (Al) is 2.4% by weight to 3.0% by weight,
    especially 2.6% by weight to 3.0% by weight,
    very particularly 3.0% by weight.
  13. Alloy or method according to one or more of the preceding claims,
    in which the content of tantalum (Ta) is 1.9% by weight to 2.5% by weight,
    especially 2.2% by weight to 2.5% by weight,
    very particularly 2.5% by weight.
EP19821053.6A 2018-12-27 2019-12-06 Nickel-based alloy for additive manufacturing and additive manufacturing method Active EP3870448B1 (en)

Applications Claiming Priority (2)

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DE102018251722.3A DE102018251722A1 (en) 2018-12-27 2018-12-27 Nickel based alloy for additive manufacturing and processes
PCT/EP2019/083955 WO2020135995A1 (en) 2018-12-27 2019-12-06 Nickel-based alloy for additive manufacturing and method

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DE102021201196A1 (en) * 2021-02-09 2022-08-11 Siemens Energy Global GmbH & Co. KG Alloy, powder, process and component
WO2024176728A1 (en) * 2023-02-21 2024-08-29 株式会社プロテリアル Sintered body and method for producing sintered body

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JP2022516454A (en) 2022-02-28
WO2020135995A1 (en) 2020-07-02
CN115943066A (en) 2023-04-07
US11753701B2 (en) 2023-09-12
CN115943066B (en) 2024-08-16
US20220064762A1 (en) 2022-03-03
EP3870448A1 (en) 2021-09-01
DE102018251722A1 (en) 2020-07-02

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